IDK i feel like snake oil is the wrong term to use here, its chemistry. Seafoam does what it says, it liquefies carbon deposits and other deposits that build up and thus allows for you to release the attached particles into suspended particles allowing for easier removal when doing oil changes. Also if adding it into your gas tank, it is capable of water removal by denaturing the molecule due to the isopropyl alcohol (aka the petrol based advertisement) and thus allowing for combustion, essentially vaporizing the water while also cleaning up your injectors. AKA water dissolved due to the ethanol and then is ignited when going into the combustion chamber. Also in regards to it damaging your engine, read this directly from there website "SEA FOAM is an EPA-registered product, and will not harm engine components, seals, gaskets, catalytic converters or oxygen sensors." I say it does what it says it does, of course that doesn't mean there might be long term effects, say 5-10 years. But as a large company like seafoam, im sure they've tested their products very thoroughly. Probably run seafoam on several cars and engines and ran for thousand of miles and then inspected every single component afterward. Your call but I believe in chemistry. As for the oil burning, I would say its mostly due to me overheating my car one time a few years back, and not the seafoam treatments, which idk what would happen? To you mechanics, what would overheating do internally to cause oil consumption, I definetly have no idea. It doesn't go down as fast when im driving city but when on the highway its two times faster, maybe because im constantly at 3500 rpm, which means what seals i guess?
